Add Rust bindings to master branch (#1401)

* Rust bindings (#1295)

* rust bindings init

* updated bindings/README

* Improved Rust bindings: (#1309)

* Added basic block hooking
* Changed confusing struct naming. Before: Protection::All -> R,W,X, Now: Permission::All -> R,W,X
* Fixed issue with remove_hook(..). Implementation tried to remove hook from incorrect hashmap.
* Made unused private vmmap(..) public.

* Improve Rust bindings (#1367)

* fixed tests

* constant readability

* HookType as bitflags

* Mode as bitflags

* improve bitflags

* cargo fmt

* removed unnecessary "as usize"

* fixed buggy deallocation of uc_context structs

* Remove data field in rust bindings

Co-authored-by: Lukas Seidel <pr0me@users.noreply.github.com>
Co-authored-by: Nikolas Eller <nikolas.e@mail.de>
Co-authored-by: Simon Wörner <git@simon-woerner.de>
Co-authored-by: floesen <floesen@users.noreply.github.com>

bindings/rust/build.rs

@@ -0,0 +1,20 @@
+use std::{env, process::Command};
+
+use build_helper::rustc::{link_lib, link_search};
+
+fn main() {
+    println!("cargo:rerun-if-changed=unicorn");
+    let out_dir = env::var("OUT_DIR").unwrap();
+    let unicorn = "libunicorn.a";
+    let _ = Command::new("cp")
+        .current_dir("../..")
+        .arg(&unicorn)
+        .arg(&out_dir)
+        .status()
+        .unwrap();
+    link_search(
+        Some(build_helper::SearchKind::Native),
+        build_helper::out_dir(),
+    );
+    link_lib(Some(build_helper::LibKind::Static), "unicorn");
+}